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Koma, Cosmos Serpent 
Legendary Creature — Serpent
Oracle Text
This spell can't be countered.
At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil.
Sacrifice another Serpent: Choose one —
• Tap target permanent. Its activated abilities can't be activated this turn.
• Koma gains indestructible until end of turn.
Format Legality
PioneerModernLegacyVintageDuel Commander
Competitive Play by Format
Top 8 decklists that played Koma, Cosmos Serpent, by format.
| Format | Decks 30d | Avg 30d | Decks 12mo | Avg 12mo |
|---|---|---|---|---|
| Pioneer | 0 | 0 | 1 | 1 |
Details
- Set
- Magic Online Promos
- Rarity
- Mythic Rare
- Mana value
- 7
- Collector #
- 88356
Non-foilFoilShowcase
Recent Top-8 Decks Playing Koma, Cosmos Serpent
Main Deck
Creatures (2)
Sorceries (4)
Instants (25)
Enchantments (4)
Lands (25)
Sideboard
8
Final: 8 | Swiss: 7
Main Deck
Creatures (10)
Enchantments (24)
Lands (26)
Sideboard
3
Final: 3 | Swiss: 4
Main Deck
Creatures (11)
Enchantments (22)
Lands (27)
Sideboard
Main Deck
Creatures (13)
- 1 Knight of Autumn
- 1 Renegade Rallier
- 1 Deputy of Detention
- 1 Skyclave Apparition
- 1 Tranquil Frillback
- 1 Tolsimir, Friend to Wolves
- 1 Glasspool Mimic
- 1 Moon-Blessed Cleric
- 1 Heliod, the Radiant Dawn
- 1 Koma, Cosmos Serpent
- 1 Atraxa, Grand Unifier
- 1 Elesh Norn, Mother of Machines
- 1 Kenrith, the Returned King
Instants (2)
Artifacts (2)
Enchantments (30)
Lands (33)
Sideboard
Main Deck
Creatures (2)
Sorceries (4)
Instants (26)
Enchantments (4)
Lands (24)
Sideboard
Main Deck
Creatures (3)
Sorceries (4)
Instants (20)
Enchantments (8)
Lands (22)
Sideboard
Main Deck
Creatures (15)
- 1 Cavalier of Dawn
- 1 Shigeki, Jukai Visionary
- 1 Knight of Autumn
- 1 Deputy of Detention
- 1 Skyclave Apparition
- 1 Tolsimir, Friend to Wolves
- 1 Aether Channeler
- 1 Tameshi, Reality Architect
- 1 Archon of Emeria
- 1 Reidane, God of the Worthy
- 1 Yorion, Sky Nomad
- 1 Titan of Industry
- 1 Elesh Norn, Mother of Machines
- 1 Kenrith, the Returned King
- 1 Agent of Treachery
Enchantments (34)
Lands (31)
Sideboard
Main Deck
Creatures (16)
- 1 Shigeki, Jukai Visionary
- 1 Knight of Autumn
- 1 Deputy of Detention
- 1 Skyclave Apparition
- 1 Callous Bloodmage
- 1 Tolsimir, Friend to Wolves
- 1 Glasspool Mimic
- 1 Archon of Emeria
- 1 Moon-Blessed Cleric
- 1 Reidane, God of the Worthy
- 1 Archon of Sun's Grace
- 1 Yorion, Sky Nomad
- 1 Titan of Industry
- 1 Elesh Norn, Mother of Machines
- 1 Kenrith, the Returned King
- 1 Agent of Treachery
Enchantments (31)
Lands (33)
Sideboard
Main Deck
Creatures (16)
- 1 Shigeki, Jukai Visionary
- 1 Knight of Autumn
- 1 Spirited Companion
- 1 Siege Rhino
- 1 Deputy of Detention
- 1 Skyclave Apparition
- 1 Callous Bloodmage
- 1 Tolsimir, Friend to Wolves
- 1 Glasspool Mimic
- 1 Archon of Emeria
- 1 Moon-Blessed Cleric
- 1 Yorion, Sky Nomad
- 1 Titan of Industry
- 1 Elesh Norn, Mother of Machines
- 1 Kenrith, the Returned King
- 1 Agent of Treachery
Enchantments (31)
Lands (33)
Sideboard
Main Deck
Creatures (13)
Enchantments (21)
Lands (26)
Sideboard
5
Final: 5 | Swiss: 2
Main Deck
Creatures (14)
Artifacts (2)
Enchantments (31)
Lands (33)
Sideboard
Main Deck
Creatures (16)
Enchantments (32)
Lands (32)
Sideboard
Main Deck
Creatures (14)
Artifacts (2)
Enchantments (31)
Lands (33)
- 1 Boseiju, Who Endures
- 2 Breeding Pool
- 1 Glacial Fortress
- 2 Hallowed Fountain
- 1 Hinterland Harbor
- 3 Jetmir's Garden
- 1 Mountain
- 1 Otawara, Soaring City
- 1 Raugrin Triome
- 3 Sacred Foundry
- 1 Sacred Foundry
- 1 Savai Triome
- 3 Spara's Headquarters
- 4 Steam Vents
- 4 Stomping Ground
- 1 Sunpetal Grove
- 3 Sunpetal Grove
Sideboard
Main Deck
Creatures (13)
Artifacts (2)
Enchantments (32)
Lands (33)
- 2 Breeding Pool
- 3 Glacial Fortress
- 1 Godless Shrine
- 1 Hinterland Harbor
- 2 Indatha Triome
- 1 Island
- 1 Jetmir's Garden
- 3 Ketria Triome
- 1 Overgrown Tomb
- 1 Plains
- 2 Raugrin Triome
- 4 Sacred Foundry
- 2 Savai Triome
- 1 Steam Vents
- 2 Stomping Ground
- 1 Sunpetal Grove
- 3 Sunpetal Grove
- 1 Zagoth Triome
- 1 Ziatora's Proving Ground
Sideboard
Main Deck
Creatures (16)
- 1 Gloomshrieker
- 1 Knight of Autumn
- 1 Spirited Companion
- 1 Siege Rhino
- 1 Deputy of Detention
- 1 Skyclave Apparition
- 1 Callous Bloodmage
- 1 Tolsimir, Friend to Wolves
- 1 Glasspool Mimic
- 1 Archon of Emeria
- 1 Moon-Blessed Cleric
- 1 Yorion, Sky Nomad
- 1 Titan of Industry
- 1 Kenrith, the Returned King
- 1 Dragonlord Atarka
- 1 Zur, Eternal Schemer
Enchantments (31)
Lands (33)
- 3 Breeding Pool
- 1 Breeding Pool
- 1 Forest
- 2 Glacial Fortress
- 1 Glacial Fortress
- 1 Godless Shrine
- 1 Isolated Chapel
- 2 Ketria Triome
- 2 Mana Confluence
- 1 Plains
- 2 Raugrin Triome
- 2 Sacred Foundry
- 2 Sacred Foundry
- 2 Savai Triome
- 1 Sunpetal Grove
- 3 Sunpetal Grove
- 1 Woodland Cemetery
- 1 Xander's Lounge
- 2 Zagoth Triome
- 2 Ziatora's Proving Ground
Sideboard
7
Final: 7 | Swiss: 7
Main Deck
Creatures (2)
Sorceries (4)
Instants (26)
Lands (23)
Sideboard
Main Deck
Creatures (15)
Enchantments (31)
Lands (34)
- 1 Blood Crypt
- 1 Breeding Pool
- 1 Forest
- 2 Godless Shrine
- 2 Hallowed Fountain
- 1 Indatha Triome
- 1 Island
- 4 Ketria Triome
- 1 Mana Confluence
- 1 Plains
- 3 Raugrin Triome
- 1 Sacred Foundry
- 1 Savai Triome
- 1 Steam Vents
- 1 Stomping Ground
- 1 Sunpetal Grove
- 2 Sunpetal Grove
- 3 Temple Garden
- 2 Watery Grave
- 2 Woodland Cemetery
- 1 Zagoth Triome
- 1 Ziatora's Proving Ground
Sideboard
6
Final: 6 | Swiss: 6
Main Deck
Creatures (8)
Sorceries (4)
Instants (19)
Enchantments (4)
Lands (25)
Sideboard
Main Deck
Creatures (3)
Sorceries (9)
Artifacts (4)
Enchantments (24)
Lands (34)
Sideboard
8
Final: 8 | Swiss: 8
